Flanging device for can-bodies.



F. W. BURPEE. FLANGING DEVICE FOR CAN BODIES.

APPLICATION man NOV. 30. m1.

1,289, 1 E 1 Patented Dec. 31', 1918.

INVENTOR flank Wflwyaee L ATTORNEYS an s'raras ram arorator.

FRANK W. BURPEE, OF SOUTH BELLINGHAM, WASHINGTON, ASSIGNOR TO BURPEE &

I LETSON, LIMITED, OF SOUTH BELLINGHAM, WASHINGTON.

FLANGIN G DEVICE FOR CAN-BODIES.

wardly flanging the open end of a cylindrical can body in preparation ofthe same for seaming a cover thereon, and is designed to be operable with the domestic hand seaming machine patented to me on the 19th of June 1917 under No. 1,230,273, to enable cans to be used a second or'third time.

The invention is particularly described in the following specification, reference being made to the drawings by which it is accompanied, in which:

Figure 1 illustrates in front elevation the application of the can flanging device to a hand seaming machine.

Fig. 2 is a plan to an enlarged scale of the flanging head, and

Fig. 3 is a detail showing the flanging bits in front and side elevation as secured in th head.

In these drawings 2 represents the frame of the machine which is secured by a clamp 4 to a table or bench 3, and in this frame is rotatably mounted the knurled driving head i 7 of the can holding chuck, which head is adapted to receive the recessed end of a can. The driving head is rotated by means of a crank handle 6 having a beveled pinion 8, the teeth of which mesh with those of the driving head. Upwardly projecting from the base of the frame 2 is a stud 9, the boss of which is radially interrupted as at 10 to receive the corresponding beveled projections 12- of the boss of a handle lever 11 fitting the same stud 9, so that partial rotation of the lever will lift and lower the lever on the stud.

The description thus far is that of the hand seaming machine, the stud 9 carrying the lower can support and the handle lever 11 being used to lift that support to force the recess of the can cover into engaging contact with the driving head 7.

The flanging head 15, which is the particular subject of this application, fits on this stud 9, replacing the lower chuck plate used Specification of Letters Patent.

Application filed November 30, 1917. Serial No. 204,745.

in the machine for can seaming, that the head 15 may by movement of the lever 11 be forced into flanging contact with the open end of a: can 5 on the driving head 7. The upper side of the flanging head 15 has a short circular projection 18 which is tapered slightly to enter and snugly fit the open end of a can and at its junction with the flanging head the outer side of both is turn to a cross section corresponding to the form; of flange it is desired to impart to the open end of the can. The plate 15 has flanging bits 19 which project slightly beyond the diameter of the can fitting portion and around the corner of the flange.

The flanging bits 19 are preferably inserted in radial notches cut across the up:

wardly projecting ring 18 of the head. The outer ends of the bits are shaped to the contour of the outer side of the flanging head and are angled or eccentrically curved outward from its diameter to project beyond it, as shown at 20 in the full size plan and the side elevation in Figs. 2 and 3.

The can is rotated in the direction indicated by the arrow in Fig. 2, and when the flanging head is inserted in the open end of the rotating can, the edge of the can will, by the flanging bits 19, be stretchedand outwardly turned to conform to the contour of the ends of the bits while the body of the ring 18 between the bits will support the can in its circular form.

The flanging head is held against rotation by an arm 17 projecting from it to engage an adjacent standard 2 of the machine frame.

The distance of the face of the driving head from the driving chuck 7 may be varied to suit different lengths of cans by interposing washers 16 of various thicknesses between the hub of the driving head and the upper face of the lifting lever 11.

In use, the open end of the can 5 which it is designed to flange is placed on the upwardly projecting ring 18 of the flanging head 15 and by means of the lever 11 the can is lifted to press the recessed other end of the can onto the knurled driving head 7 As the can is rotated, the edge of the open end, as it moves over the edges of the flanging bits 19, is expanded and turned outward to form the desired flange suitable forre-seam ing anew cover on the can.

Patented Dec. 31, 1918. I

I ing a flanging head having a portion turned vention, I hereby declare that what I claim as new and desire to be protected in by Let ters Patent, is:

1. A can body flanging device, comprising a flanging head plate having a portion turned to fit within the open end of a can and a flange at right angles thereto, and a series of expanding bits carried by the head to project slightly beyond the diameter of the can fittin portion and-around the "cor-.

ner of the ange, means for rotating a can on the flanging head plate and means for pressing the flanging head plate intov contact with the edge of the open end of the can. a 2. A can body flanging device, compris' to fit within the open end of a can with a flange portion shaped to the desired conformation of the flange, a series of expanding bits inserted in radial grooves across the can fitting portion of the head, the outer ends of which bits are shaped to the conformation of the flange and project slightly beyond the contour of the flanging head, means expanding bits inserted in the can fitting for rotating a can on the flanging head, and means for moving the flanging head axially toward the can as the edge flanges.

3. A can body flanging device, comprising a flanging head having a portion turned to fit within the open end of a can and a flange portion at right angles thereto, a series of portion ofthe head, the outer ends of which hits are'shaped to the conformation of the flange, and taper from the diameter of the can fitting portion on the leading edge to a short distance beyond that diameter on the following edge, means for rotating a can on the flanging head, and means for moving the head axially toward the can as the edge is flanged.

4. A can body flanging device, comprising the combination with a can driving head rotatably mounted in a suitable frame, and

a stud projecting from the lower part of the frame in axial alinement with the driving head, an incline faced lifting lever rotatably mounted on the stud, a flanglng head Having now particularly described my in- I mounted on the same stud above the lifting lever with means preventing rotation thereon, said flanging head having a portion turned to fit the open end of a can to be flanged, and a flange at right angles thereto, and a series of expanding bits secured at intervals around the portion of the head adapted to fit the can, the after edges of the outer ends of which bits project beyond the contacting surface of the flanging head and project at an angle therefrom to the circle of the can fitting portion of the head.

' 5. A can bit flanging device comprising a flanging head plate having a portion turned to fit within the open end of a can and having a flange at right angles to said portion, an expanding bit carried by the head plate to project slightly beyond the diameter of the can fitting portion of the head plate and around the corner of the flange, means for rotating a can on the flanging head plate, and means for applying pressure to maintain the flanging head plate in contact with the open end of the can.

6. In a machine of the class described, a frame, a driving head journaled in the frame, means for turning said head, a lugon the frame in alinement with the driving head, a flanging head plate having a shank to fit on said lug and having an arm adapted to engage the frame to hold said head plate againstturning, and a cam lever on said lug for pressing said flanging head plate toward the driving plate and against the openend of the can to thereby hold the can in driving contact with the driving head, whereby said can will be turned by the drivinghead to flange the same.

7. In an apparatus of the class described, a frame, a drivinghead journaled in said frame, means for turning said head, a flang ing head, means for mounting said flanging head with its axis in alinement with the axis of said driving head, said flanging head being adapted for movement bodily toward and from said driving head, a cam lever for moving said flanging head toward said driving head to thereby apply pressure to the can to hold it against the driving head and means for holding said flanging head against turning while pressure is applied against the can to effect the fianging operation.

a In testimony whereof I aflix my signature.

FRANK W, BURPEE. 

